Sumitomo General Catalog 2025-2026

CBN CBN Grade Guidance

Hardened Steel

Application Examples (Continuous Cutting)

990

660

495

330

BNC2115 BNC2125 BNC2010 BNC2020 BNC2105

L

BN2000 Ceramics

165

10

100

200 300

1

Tool Life (min) Tool Life Criterion: V B max = .0039”

Part Material: Alloy Structural Steel Round Bar (58 to 62HRC) Tool Cat. No.: DNGA432 Cutting Conditions: f = .0039 IPR, a p = .0079" Wet

Application Examples (Interrupted Cutting)

[Light Int. - Face with 4 Chamfered Holes (Interrupted Cutting 25%)]

[Medium Int. - Face with 8 Chamfered Holes (Interrupted Cutting 50%)]

Tool

Tool Life Ratio

Tool Life Ratio

Tool

BN2000 BNC300 BN350 Tool Grade

BN2000 BNC300 BN350 Tool Grade

50

100

50

100 D

D

D

D

D

D

Part Material: Chromium Steel (58 to 62 HRC) Tool Cat. No.: CNMA432 Cutting Conditions: v c = 330 SFM, f = .0039 IPR, a p = .0079" Dry

Part Material: Chromium Steel (58 to 62 HRC) Tool Cat. No.: CNMA432 Cutting Conditions: v c = 330 SFM, f = .0039 IPR, a p = .0079" Dry

[Heavy Int. - U Groove Face (Interrupted Cutting 100%)]

[High Speed Int. - Face with 8 Chamfered Holes (Interrupted Cutting 50%)]

Tool

Tool

Tool Life Ratio

Tool Life Ratio

BN2000 BNC300 BN350 Tool Grade

BN2000 BNC300 BN350 Tool Grade

50

100

50

100

D

D

ø100

D

D

D

D

Part Material: Chromium Steel (58 to 62 HRC) Tool Cat. No.: CNMA432 Cutting Conditions: v c = 330 SFM, f = .0039 IPR, a p = .0079" Dry

Part Material: Chromium Steel (58 to 62 HRC) Tool Cat. No.: CNMA432 Cutting Conditions: v c = 650 SFM, f = .0039 IPR, a p = .0079" Dry

L6

Made with FlippingBook flipbook maker